/u/sharksgivethebestbjs's posts in /r/askscience

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A standard internal combustion engine burns fuel and oxygen, which burns to produce a greater number of gas molecules as well as heat. Assuming that both of these produce power, which one produces most of the power? The heat excess or the stoichiometric excess?

819 upvotes

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Why does the water in a lake or pond not absorb into the ground below? When I dig a hole and fill it with water, it is absorbed almost immediately.

77 upvotes

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Is there anyway to visualize what is going on with a Laplace Transform?

11 upvotes

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What is the physics behind snapping a towel? Does the tip travel much faster than the rest? If it does, why?

3 upvotes

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Can we use human excrement as fertilizer for human food? In the same way as we use manure from farm animals?

2 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
A standard internal combustion engine burns fuel and oxygen, which burns to produce a greater number of gas molecules as well as heat. Assuming that both of these produce power, which one produces most of the power? The heat excess or the stoichiometric excess?	819
Why does the water in a lake or pond not absorb into the ground below? When I dig a hole and fill it with water, it is absorbed almost immediately.	77
Is there anyway to visualize what is going on with a Laplace Transform?	11
What is the physics behind snapping a towel? Does the tip travel much faster than the rest? If it does, why?	3
Can we use human excrement as fertilizer for human food? In the same way as we use manure from farm animals?	2